docs: make it clearer that the following example demonstrates how to wrap the ordered column

Author: auxesis

SUPABASE.md

@@ -60,7 +60,7 @@ The behaviour of the "match" index term that is used by the encrypted `LIKE` ope
 
 ### `ORDER BY`
 
-Ordering requires wrapping the ordered column in the `eql_v1.order_by` function.
+Ordering requires wrapping the ordered column in the `eql_v1.order_by` function, like this:
 
 ```
 SELECT * FROM users ORDER BY eql_v1.order_by(encrypted_created_at) DESC